Suppose I make two citations at the same place

\cite{ref1}, \cite{ref2}

It would appear as

[1], [2]

Sometimes I see a reference like

[1, 2]

How is that done in TeX? Also, when should I use one over the other?

  • 3
    – Sigur
    Apr 21, 2014 at 19:52
  • 1
    and with page number? Sep 11, 2021 at 12:29

2 Answers 2


Multiple citations at the same place can be achieved with


Some bibliographic styles (ieee for example) turn multiple citations, i.e., [1,2] into [1], [2]. So, for the second part, it is a matter of the style used and customs.

  • 8
    Thank you! It is useful to realize that there should not be any space between the reference key and comma.
    – zyy
    Jun 27, 2017 at 17:26
  • Whys does that matter? I get the same result both ways.
    – S P Sharan
    Aug 22, 2021 at 6:47
  • how to do this with page numbers? Sep 11, 2021 at 12:30

If you want to include page numbers, you can use BibLaTex's \cites command (as described here) or you can use BibTex with the xparse package and define your own command.


% Takes up to 4 pairs of citations with optional page reference

Example usage:
leads to:

(Sjöström et al., 2018, p. 1; Kerly et al., 2007; Winkler und Roos, 2019, p. 3)

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